30020032020 has 48 divisors (see below), whose sum is σ = 91697554368. Its totient is φ = 7277583360.

The previous prime is 30020032019. The next prime is 30020032069. The reversal of 30020032020 is 2023002003.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30020031987 and 30020032005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22741789 + ... + 22743108.

It is an arithmetic number, because the mean of its divisors is an integer number (1910365716).

Almost surely, 2^30020032020 is an apocalyptic number.

30020032020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30020032020 is an abundant number, since it is smaller than the sum of its proper divisors (61677522348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30020032020 is a wasteful number, since it uses less digits than its factorization.

30020032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45484920 (or 45484918 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 30020032020 its reverse (2023002003), we get a palindrome (32043034023).

The spelling of 30020032020 in words is "thirty billion, twenty million, thirty-two thousand, twenty".